What is this?

I'm not sure if this is just a regular pimple or what it is. It's a red bump, doesn't hurt, and isn't too big(half the size of a pencil eraser). It doesn't have a head on it. Any ideas of what to put on it to get it to go away?

Is your skin prone to acne. Everyone gets em now and again under the skin, from blood impurities, hormones, a trigger food etc....
I guess you have to wait it out. It takes a while, sometimes it will subside. To draw it out, use warm water and salt on a q-tip and dab.